linux/arch/arm/mach-omap2/include/mach/barriers.h
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   1/*
   2 * OMAP memory barrier header.
   3 *
   4 * Copyright (C) 2011 Texas Instruments, Inc.
   5 *  Santosh Shilimkar <santosh.shilimkar@ti.com>
   6 *  Richard Woodruff <r-woodruff2@ti.com>
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License version 2 as
  10 * published by the Free Software Foundation.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20 */
  21
  22#ifndef __MACH_BARRIERS_H
  23#define __MACH_BARRIERS_H
  24
  25#include <asm/outercache.h>
  26
  27extern void omap_bus_sync(void);
  28
  29#define rmb()           dsb()
  30#define wmb()           do { dsb(); outer_sync(); omap_bus_sync(); } while (0)
  31#define mb()            wmb()
  32
  33#endif  /* __MACH_BARRIERS_H */
  34